Is the universe discrete or continuous?

What proof is there that the universe is discrete and what proof is there that the universe is continuous?

You can never know if the universe is discrete for certain since even if it appears so there may still be some undetectable phenomena you are unaware of.

You can never find evidence to suggest the universe is continuous as there can never be a scientific instrument capable of infinite accuracy.

#31, I asked if discreteness even exists.  Look, in our space, we have particles zipping around "empty" space.  However, even that empty space is "something".  The original poster speculated that this empty space is itself discrete, like the particles it contains.  But even if so, doesn't that imply a larger matrix (let's call it "superspace") for our space to exist discretely in?

In short, does discreteness even exist in any real-world example?  What appears to be discrete, is actually a matrix of materials.  This means a set of discrete elements is actually a set of TWO things:  the discrete elements, and the (apparently) CONTINUOUS matrix in which they're embedded.  In short, discreteness really doesn't exist, or only exists for restricted scopes, since there appears to always be a larger continuity.